CN105605204B - A kind of power dividing infinitive variable gear box - Google Patents

A kind of power dividing infinitive variable gear box Download PDF

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Publication number
CN105605204B
CN105605204B CN201610146788.6A CN201610146788A CN105605204B CN 105605204 B CN105605204 B CN 105605204B CN 201610146788 A CN201610146788 A CN 201610146788A CN 105605204 B CN105605204 B CN 105605204B
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China
Prior art keywords
gear
low
clutch
level
parking braking
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CN201610146788.6A
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Chinese (zh)
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CN105605204A (en
Inventor
骆军芝
俞跻聪
于升
黄伟荣
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HANGZHOU ADVANCE GEARBOX CO Ltd
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HANGZHOU ADVANCE GEARBOX CO Ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H47/00—Combinations of mechanical gearing with fluid clutches or fluid gearing
    • F16H47/02—Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the volumetric type
    • F16H47/04—Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the volumetric type the mechanical gearing being of the type with members having orbital motion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/037—Gearboxes for accommodating differential gearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/0412—Cooling or heating; Control of temperature
    • F16H57/0415—Air cooling or ventilation; Heat exchangers; Thermal insulations
    • F16H57/0416—Air cooling or ventilation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
    • F16H2057/0235—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly specially adapted to allow easy accessibility and repair
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H2306/00—Shifting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H2700/00—Transmission housings and mounting of transmission components therein; Cooling; Lubrication; Flexible suspensions, e.g. floating frames

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Retarders (AREA)
  • Structure Of Transmissions (AREA)

Abstract

The present invention relates to a kind of power dividing infinitive variable gear boxs, belong to transmission gear technical field.An axis, jackshaft, left output axle shaft, right output axle shaft, differential mechanism, planet axis, low or first gear clutch, top gear clutch, parking braking clutch and the brake clutch coupled including two-way oil pump, with power source, low or first gear level-one driving gear is engaged with low or first gear level-one driven gear, realizes power dividing；Two grades of driving gears of low or first gear are engaged with low or first gear two level driven gear, realize power interflow.Apply the present invention to the engineering machinery such as self propelled harvester tool equipment running gear or tractor, it can be achieved that two gears of high and low shelves variable speed power shift.

Description

A kind of power dividing infinitive variable gear box
Technical field
The present invention relates to a kind of power dividing infinitive variable gear boxs, belong to transmission device technical field.
Background technology
Domestic existing self propelled harvester tool walking dynamical system there are two types of form, one is using internal combustion engine as moving Power, another kind are using hydraulic motor as power.Self propelled harvester tool power using internal combustion engine as power is big, but internal combustion engine Exhaust gas and noise pollution it is serious；And the self propelled harvester tool using hydraulic motor as power with its good environmental-protecting performance and Variable speed performance, is just increasingly taken seriously, and yield is increasing.Self propelled harvester tool using internal combustion engine as power, Such as patent 201510700315.1,201510161790.6,201220160530.9, power are passed by belt pulley, right angle Power is passed to running gear gearbox speed change by the Gear Planet Transmissions such as moving teeth roller box, torque dupler equipment, is exported through differential mechanism and left and right Semiaxis, wheel side differential gear housing pass to power on wheel, and due to its power transmission chain length, machinery driving efficiency is relatively low. The different gait of march that this kind of gearbox needs mainly with mechanical type shifting, reaching Work machine in different working condition Purpose.And the self propelled harvester tool using hydraulic motor as power, although solving transmission chain length, the low problem of efficiency, And the change gear box of running gear is still to realize gear using the structure of sliding tooth or synchronizer using mechanical gear shift Transformation needs first stepping on clutch in gear shift, power and gear-box is fully disconnected, then carry out gear-change operation again.Due to harvest Machinery at work, needs to convert between different gears, the labor intensity of operator is very big.
Based on this, the application is made.
Invention content
The object of the present invention is to provide a kind of compact-sized, good reliability, small, light-weight, transmission efficiency, operations Simple power dividing variable speed power shift gear-box, embedded parking braking system, hydraulic brake system, differential system With power shift system.
To achieve the above object, the technical solution adopted by the present invention is that：A kind of power dividing variable speed power shift tooth The top setting of roller box, including babinet and case lid, the babinet manipulates valve；It is provided in the babinet：One axis, low or first gear level-one master Moving gear, low or first gear level-one driven gear, two grades of driving gears of low or first gear, low or first gear two level driven gear, top gear driving tooth Wheel, low or first gear clutch, is stayed at top gear driven gear, jackshaft, countershaft-gear, differential mechanism gear wheel, top gear clutch Vehicle brake coupling, brake clutch, differential mechanism, left output axle shaft, right output axle shaft, planet axis, planet carrier, top gear clutch Device seat, low or first gear clutch base, brake base, parking braking clutch base；Wherein：One axis is joined by spline housing and hydraulic motor It connects, realizes the input of power；One low or first gear level-one driving gear is engaged with three low or first gear level-one driven gears, reaches power It shunts, the purpose of primary speed-down；Three low or first gears, two grades of driving gears are engaged with a low or first gear two level driven gear, reach work( Rate interflow, double reduction purpose；Top gear driving gear is engaged with top gear driven gear, and top gear driven gear passes through flower Key connecting is sleeved on jackshaft；Countershaft-gear is engaged with differential mechanism gear wheel；It is provided with top gear clutch and low or first gear Clutch is both provided with the Wet-type friction slice of hydraulic control in clutch.Top gear clutch base and an axis interference fit joint；Low speed Shelves clutch base be connected by bolts with planet carrier, top gear clutch is actively coupled by friction plate and an axis, low or first gear from Clutch is actively coupled by friction plate and planet carrier.One axis is overall gear axis with low or first gear level-one driving gear；Low or first gear one Grade driven gear is interference fit joint with two grades of driving gears of low or first gear；Low or first gear two level driven gear and top gear driving gear, Parking braking clutch base is whole；Top gear driven gear is sleeved on by sliding bearing on an axis；High low or first gear two level from Moving gear is that spline couples with jackshaft；Countershaft-gear is overall gear axis with jackshaft；Differential mechanism gear wheel and differential mechanism Shell is bolt-connection；Brake base is that spline couples with left and right output axle shaft.
When hydraulic oil enters top gear clutch oil cylinder, the work of top gear clutch, top gear piston pressing friction piece, Planet carrier is coupled by top gear clutch with an axis, power by an axis, low or first gear level-one driving gear, low or first gear level-one from Moving gear, two grades of driving gears of low or first gear, low or first gear two level driven gear, top gear driving gear, top gear driven gear, in Countershaft, countershaft-gear, differential mechanism gear wheel differential mechanism gear wheel, differential mechanism, the output of left and right output axle shaft, realize that top gear passes It is dynamic；When hydraulic oil enters low or first gear clutch oil cylinder, the work of low or first gear clutch, low or first gear piston pressing friction piece, planet Frame is fixed by low or first gear clutch with babinet, and power passes through an axis, low or first gear level-one driving gear and three low or first gear level-ones Driven gear engages（Power dividing, primary speed-down）, three two grades of driving gears of low or first gear and low or first gear two level driven gear nibble It closes（Power interflow, double reduction）, top gear driving gear, top gear driven gear, jackshaft, countershaft-gear, differential mechanism Gear wheel differential mechanism gear wheel, differential mechanism, the output of left and right output axle shaft, realize top gear transmission.Left and right output axle shaft respectively with Left and right hub reduction gear connecting belt moves tyre rotation.
Parking braking clutch is normally closed type, and under the action of disk spring, parking braking piston pushes down friction plate always, Equipment is in on-position.When hydraulic oil enters parking braking clutch oil cylinder, parking braking piston motion is pushed, it is inside and outside to rub Pad detaches, and equipment is in running order.
Further, in order to optimize structure, improve applicability, one end of an axis is mounted on babinet by taper roll bearing On, the other end of an axis is mounted on by taper roll bearing and mounting base on case lid.
Further, in order to optimize structure, improve applicability, one end of jackshaft axis is mounted on by taper roll bearing On babinet, the other end of jackshaft is mounted on by taper roll bearing on case lid.
Further, in order to optimize structure, improve applicability, differential mechanism is mounted on case by deep groove ball bearing and bearing block On body.
Further, in order to optimize structure, improve applicability, it is one that an axis manufactures and designs with low or first gear level-one driving gear A overall gear axis.
Further, in order to optimize structure, improve applicability, differential mechanism gear wheel is coupled by screw with differential casing Integrally.
Further, in order to increase heat dissipation area, the temperature of gear-box has been efficiently controlled, has been set in the outer surface of babinet Radiating rib plate is set.
Further, in order to optimize structure, improve applicability, low or first gear two level driven gear and top gear driving gear, It is an overall structure that parking braking clutch base, which manufactures and designs,.
Further, in order to optimize structure, improve applicability, top gear clutch housing is designed with low or first gear clutch base For an overall structure.
Further, in order to optimize structure, improve applicability, it is one that parking braking clutch housing manufactures and designs with case lid A overall structure.
Further, in order to optimize structure, improve applicability, it is one that brake clutch shell manufactures and designs with bearing block Overall structure.
Further, in order to optimize structure, improve applicability, brake clutch is that spline couples with left and right output axle shaft.
Further, in order to optimize structure, improve applicability, top gear driven gear is that spline couples with jackshaft.
The present invention operation principle and have the beneficial effect that：
（1）Due to using parallel axes Spur Gear Driving, the transmission side that mechanical structure collaborates by power dividing and then again Formula so that in the case of equal-wattage and transmission ratio, gear-box volume can be reduced greatly, mechanical efficiency is improved, reduce life Produce cost；It is used cooperatively with hydraulic motor and electro-hydraulic manipulation valve, gear variation and variable speed automatically not only may be implemented, moreover it is possible to Achieve the purpose that intellectualized operation.
（2）The setting of two gears of top gear and low or first gear can make liquid in the different gear of different working conditions Pressure motor works under most economical rotating speed, reaches energy-saving and environment-friendly purpose.In the application, shift mechanism uses hydraulic pressure wet type Clutch, using built-in, totally enclosed form, good appearance, pollution is small.With the gear shift machine of the sliding tooth and synchronizer of transmission system Structure is compared, easy to operate, reliable in gear shift without coupling between cut-out and power source using the shift structure of the application.
（3）Power source uses hydraulic motor, the output direction of rotation of hydraulic motor to change, in conjunction with the gear-box of the application, Two grades of variations for retreating two grades of totally four gears of advancing may be implemented.No matter it is provided with two-way fuel feeding oil pump in the rear end of an axis How the direction of rotation of one axis changes, the oil inlet and outlet of oil pump is constant, is effectively guaranteed the lubrication and clutch of gear-box Job requirement.Built-in differential mechanism, good appearance save space.
（4）Differential mechanism allows left and right output axle shaft with different while ensureing output axle shaft passing power to the left and right Rotating speed rotates, and meets two sidecar wheels and makees Unequal distance traveling in the form of pure rolling as far as possible, ensures that complete machine is steady when turning, reduces wheel The friction of tire and ground.
（5）This gear-box is designed using modular combination mode, and all components, which can individually be split, is conducive to the whole of spare part Body assembles and repair is replaced；Radiating rib plate is increased in the outer surface of babinet, heat dissipation area is increased, has efficiently controlled gear The temperature of case.
Description of the drawings
Fig. 1 is the front view of the application gear-box；
Fig. 2 is the side view of the application gear-box；
Fig. 3 is the vertical view of the application gear-box；
Fig. 4 is the cross-sectional view of the application gear-box；
Fig. 5 is the hydraulic principle schematic diagram of the application gear-box.
Wherein label：1. babinet；1a. radiating rib plates；2. case lid；2a. mounting bases；3. two-way oil pump；4. an axis； 4a. low or first gear level-one driving gears；4b. low or first gear level-one driven gears；Two grades of driving gears of 4c. low or first gears；4d. low speed Shelves two level driven gear；5. jackshaft；5a. top gear driving gears；5b. top gear driven gears；5c. jackshaft teeth Wheel；6. left output axle shaft；7. right output axle shaft；8. differential mechanism；8a. differential mechanism gear wheels；9. low or first gear clutch；9a. Low or first gear piston；9b. low or first gear return springs；10. top gear clutch；10a. top gear pistons；10b. top gears return Spring back spring；11. planet carrier；11a. planet axis；12. parking braking clutch；12a. parking braking pistons；12b. parkings Brake return spring；12c. parking pedestals；13. brake clutch；13a. Braking pistons；13b. brake return springs； 13c. bearing blocks；13d. brake bases.
Specific implementation mode
Embodiment 1
A kind of power dividing electrodeless variable-speed power shift gear-box of the present embodiment, in conjunction with Fig. 1 to Fig. 4, including babinet 1 and case Subdivision is equipped in the top surface of babinet 1 in conjunction with Fig. 4 and manipulates valve, be equipped in one end of an axis 4 along longitudinal direction for lid 2, babinet 1 and case lid 2 Two-way oil pump 3 should be known as the rear end of an axis 4 equipped with one end of two-way oil pump 3, and the other end, that is, front end of an axis 4 passes through spline Set couples with power source hydraulic motor；Left output axle shaft 6 and right output axle shaft 7 are joined by spline housing and left and right hub reduction gear It connects；One axis 4 is installed on by two taper roll bearing one end on babinet 1, and the other end is mounted on case lid 2 by mounting base 2a On, while low or first gear level-one driving gear 4a and an axis 4 are designed and manufactured into an entirety, top gear clutch base 10 passes through hot jacket Interference couples with an axis 4；Planet carrier 11, low or first gear clutch base and bushing are bolted, and pass through two pieces deep groove ball bearing On an axis 4 and babinet 1, bushing empty set is on an axis 4；Three low or first gear level-one driven gear 4b respectively with three low speed Two grades of driving gear 4c hot jacket interference fit joints of shelves, and be mounted on planet carrier 11 by needle bearing and planet axis 11a；Low speed two Grade driven gear 4d, top gear driving gear 5a, parking braking clutch base 12 are an overall structure, low or first gear clutch 9 Shell and babinet 1 be bolted fixation.
Jackshaft 5 is installed on by two taper roller bearing one end on babinet 1, and the other end is mounted on case lid 2, top gear Driving gear 5a is coupled by spline with jackshaft 5.Countershaft-gear 5a is an overall structure with jackshaft 5.Case lid 2 with stay The shell of vehicle brake coupling 5 is an overall structure.
Differential mechanism 8 is installed on by bearing block 13c on babinet 1 and case lid 2 by two deep groove ball bearings, differential mechanism canine tooth Wheel 8a is bolted on the shell of differential mechanism 8, and left output axle shaft 6 is installed on bearing block 13c by two pieces ditch ball bearing On, one end of left output axle shaft 6 is coupled by spline with the planetary gear in differential mechanism 8 at this time, the other end of left output axle shaft 6 Coupled with revolver side reducer by spline housing；Right output axle shaft 7 is installed on by two pieces deep groove ball bearing on bearing block 13c, One end of right output axle shaft 7 is coupled by spline with the planetary gear in differential mechanism 8, and the other end of right output axle shaft 7 passes through flower Key set couples with right wheel side reducer.
Two pieces brake base 13d is coupled with left output axle shaft 6 and right output axle shaft 7 by spline respectively, brake clutch 13 shell is an overall structure with bearing block 13c.
In use, hydraulic oil is first imported into 12 oil cylinder of parking braking clutch before vehicle launch, parking braking is lived Plug 12a overcomes parking braking return spring 12b（Disk spring is selected in the application）Effect move right, interior outside friction disc point From vehicle loses parking braking function；When vehicle stopping needs parking braking, as long as parking braking clutch 12 will be imported The hydraulic oil of oil cylinder cuts off and leaks oil return box, parking braking piston 12a under the action of parking braking return spring 12b to the left Mobile, interior outside friction disc combines, and realizes vehicle parking.Power source is connected by spline housing with one axis 4 of gear-box, is driven One axis 4 rotates, and drives two-way oil pump 3 to work by an axis 4, forms pressure oil in hydraulic control system.
When manipulating valve in " top gear " position, hydraulic control system leads the cylinder efficient oil of top gear clutch 10 Enter, push top gear piston 10a that the effect of top gear return spring 10b is overcome to compress friction plate, planet carrier 11 passes through high speed Shell, the top gear clutch base of shelves clutch 10 couple with an axis 4, and power is through low or first gear level-one driving gear 4a, low or first gear Level-one driven gear 4b, low or first gear two level driving gear 4c, low or first gear two level driven gear 4d, then through top gear driving gear 5a Deceleration is engaged with top gear driven gear 5b and is transmitted to jackshaft 5, then is engaged with differential mechanism gear wheel 8a through countershaft-gear 5c The shell of differential mechanism 8 is decelerated to, then the planetary gear through differential mechanism 8 is transmitted to left output axle shaft 6 and right output axle shaft 7 exports. When hydraulically operated valve returns to " stopping " position, the cylinder efficient oil of top gear clutch 10 is through the direct oil return box of hydraulic valve, high speed Shelves piston 10a is moved to the left under the action of top gear return spring 10b, and planet carrier 11 and an axis 4 disengage, and are in free state Not passing power.
When hydraulically operated valve is in " low or first gear " position, hydraulic control system is oily by the cylinder efficient of low or first gear clutch 9 It imports, pushes low or first gear piston 9a that the effect of low or first gear return spring 9b is overcome to compress friction plate, planet carrier 11 passes through low speed Shelves clutch base, low or first gear clutch housing and babinet 1 are connected and fixed.Low speed level-one driving gear 4a and three low or first gear level-ones Driven gear 4b engagements decelerate to three low or first gears, two grades of driving gear 4c, three low or first gears, two grades of driving gear 4c and low speed two The 4d engagements of grade driven gear decelerate to top gear driving gear 5a, are nibbled through top gear driving gear 5a and top gear driven gear 5b Conjunction decelerates to jackshaft 5, engages the shell for decelerating to differential mechanism 8 with differential mechanism gear wheel 8a through countershaft-gear 5c, then through difference The planetary gear of fast device 8 is transmitted to left output axle shaft 6 and right output axle shaft 7 exports.When hydraulically operated valve returns to " stopping " position, 9 cylinder efficient oil of low or first gear clutch is through the direct oil return box of hydraulic valve, works of the low or first gear piston 9a in low or first gear return spring 9b It is moved to the left under, planet carrier 11 is disengaged with babinet 1, is in free state not passing power.
When the output direction of rotation of power source hydraulic motor changes, so that it may fall back top gear, low or first gear to realize
In conjunction with Fig. 5, the concrete analysis of this gearbox hydraulic operation principle is as follows：This gear-box is hydraulic operation, as oil pump Y2 After work, machine oil is from gear-box after rough piece Y1 is by filter Y3（On filter Y3 while in parallel there are one by-passing valve Y4）, One road binders, which enters, manipulates valve Y6（It is equipped with operating pressure table Y5 on pipeline between filter Y3 and manipulation valve Y6）, pass through manipulation Valve Y6 imports the oil cylinder of corresponding clutch Y11/Y12, waits for being full of hydraulic oil in clutch oil cylinder, and operating oil pressure is raised to setting (when manufacture, lubrication pressure table Y13 is respectively connected on the oil cylinder of clutch Y11/Y12, for detecting oil pressure) after value, another road binders It is overflowed from operating pressure valve Y7, a part to each oil site pipeline Y14 again by distributing to each oil site, and another part is through profit Slide pressing force valve Y10 overflows back babinet oil sump.Lubricating oil pressure can be adjusted by lubrication pressure valve 10；When manipulation valve is in " stopping " position When, operating pressure valve Y7 makes system pressure be maintained at lower initial pressure range（0.18-0.3Mpa）；When manipulation valve is " high When fast shelves ", " low or first gear " position, that is, there is pressure oil to be all the way directed at the control terminal of operating pressure valve Y7 through throttle valve Y9（It is throttling Check valve Y8 is parallel on valve Y9）, system pressure is made so that pressure state is risen progressively to 1.3-1.5Mpa from just.
Compared with prior art, in technical solution provided herein, built-in hydraulic pressure wet clutch carries out gear shift behaviour Make, with the drive mechanism that power dividing, power collaborate, makes the equal-wattage and transmission ratio the case where, the big reduction of machine volume. There are two gears of top gear and low or first gear simultaneously, ensure regardless of plant machinery is under what working condition, power source（Hydraulic pressure horse It reaches）Can under most economical rated speed turn, reach energy-saving and environment-friendly purpose.Embedded parking braking device and water brake Device.This gear box structure is simple, gear shift is reliable, easy to operate, Modular Structure Design.It is used cooperatively with electro-hydraulic manipulation valve, Fluid drive may be implemented, reach intelligentized purpose.

Claims (7)

1. a kind of power dividing infinitive variable gear box, it is characterised in that：The axis that couples including two-way oil pump, with power source, Jackshaft, left output axle shaft, right output axle shaft, differential mechanism, planet axis, low or first gear clutch, top gear clutch, parking braking Clutch and brake clutch, an axis are gear shaft, are provided with low or first gear level-one driving gear, low or first gear level-one driving tooth Wheel is engaged with low or first gear level-one driven gear, realizes power dividing；Low or first gear level-one driven gear and two grades of driving tooths of low or first gear Take turns interference connection, two grades of driving gears of low or first gear are fixed on the planet carrier by planet axis, two grades of driving gears of low or first gear with it is low Fast shelves two level driven gear engagement, realizes power interflow；Low or first gear two level driven gear constitutes duplex with top gear driving gear Gear, and empty set, on an axis, top gear driving gear is engaged with top gear driven gear, and top gear driven gear is sleeved on On jackshaft；Jackshaft is gear shaft, is provided with countershaft-gear；Differential mechanism gear wheel is connected on differential mechanism, and poor Fast device gear wheel engages connection with intermediate driving gear；Top gear clutch and low or first gear clutch are two-way with an axis connection Oil pump is located at a shaft rear end, and is connected with low or first gear clutch, top gear clutch and parking braking clutch, two-way oil Hydraulic oil in pump enters top gear clutch, low or first gear clutch or parking braking clutch, to realize top gear, low or first gear And the adjustment of braking；Left output axle shaft and right output axle shaft are respectively in differential mechanism both sides, and brake clutch is then fixed on a left side On output axle shaft and right output axle shaft；
Top gear piston and the high-speed friction piece of hydraulic control are provided in the top gear clutch；Two-way oil pump and high speed When shelves clutch connection, hydraulic oil enters the oil cylinder of top gear clutch, and top gear piston is pushed to compress high-speed friction piece, power Pass through low or first gear level-one driving gear, low or first gear level-one driven gear, two grades of driving gears of low or first gear, low or first gear two level driven tooth Wheel is transmitted to top gear driving gear, differential mechanism gear wheel, differential mechanism, and is exported through left output axle shaft, right output axle shaft, realizes Top gear is driven；Top gear return spring, top gear return spring and top gear are additionally provided in the top gear clutch Piston coordinates；
The low speed friction of low or first gear piston, low or first gear return spring and hydraulic control is provided in the low or first gear clutch Piece；When two-way oil pump is connected to low or first gear clutch, hydraulic oil enters the oil cylinder of low or first gear clutch, pushes low or first gear piston pressure Tight low speed friction piece, low or first gear level-one driving gear are engaged with low or first gear level-one driven gear, realize that shunting is slowed down, then through low speed Two grades of driving gears of shelves are engaged with low or first gear two level driven gear, are completed interflow and are slowed down, then through top gear driving gear, high speed Shelves driven gear, jackshaft, countershaft-gear, differential mechanism gear wheel, differential mechanism are exported by left output axle shaft, right output axle shaft, Realize low or first gear transmission.
2. a kind of power dividing infinitive variable gear box as described in claim 1, it is characterised in that：The low or first gear clutch Low or first gear return spring is additionally provided in device, low or first gear return spring coordinates with low or first gear piston.
3. a kind of power dividing infinitive variable gear box as described in claim 1, it is characterised in that：The parking braking from Be provided in clutch parking braking piston, hydraulic control parking braking friction plate；Parking braking piston pushes down friction plate always, Equipment is in on-position；When two-way oil pump is connected to parking braking clutch, hydraulic oil enters the oil of parking braking clutch Cylinder pushes parking braking piston action, parking braking friction plate to be in discrete state, be in working condition at this time.
4. a kind of power dividing infinitive variable gear box as claimed in claim 3, it is characterised in that：The parking braking from Disk spring is additionally provided in clutch, disk spring coordinates with low or first gear piston.
5. a kind of power dividing infinitive variable gear box as described in claim 1, it is characterised in that：The parking braking rubs Pad is normally closed type.
6. a kind of power dividing infinitive variable gear box as described in claim 1, it is characterised in that：One axis, centre Axis and differential mechanism are located in babinet, and box outer surface has then been located at radiating rib plate.
7. a kind of power dividing infinitive variable gear box as described in claim 1, it is characterised in that：The low or first gear two level The pedestal of driven gear and top gear driving gear, parking braking clutch is monolithic construction.
CN201610146788.6A 2016-03-15 2016-03-15 A kind of power dividing infinitive variable gear box Active CN105605204B (en)

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Application Number Priority Date Filing Date Title
CN201610146788.6A CN105605204B (en) 2016-03-15 2016-03-15 A kind of power dividing infinitive variable gear box

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Application Number Priority Date Filing Date Title
CN201610146788.6A CN105605204B (en) 2016-03-15 2016-03-15 A kind of power dividing infinitive variable gear box

Publications (2)

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CN109340324B (en) * 2018-12-19 2024-05-31 绍兴前进齿轮箱有限公司 Power shift gear box for wheel excavator

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CN205605780U (en) * 2016-03-15 2016-09-28 绍兴前进齿轮箱有限公司 Power dividing infinitely variable gear box

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CN101929528A (en) * 2010-08-06 2010-12-29 江苏省金象减速机有限公司 Dual-input power dividing differential planetary reducer
EP2431632A1 (en) * 2010-09-20 2012-03-21 Winergy AG Splitted drive for a wind turbine
CN102141118A (en) * 2011-03-29 2011-08-03 重庆大学 Differential speed reducer
CN104455302A (en) * 2014-11-18 2015-03-25 绍兴前进齿轮箱有限公司 Agricultural machine gearbox internally provided with hydraulic wet clutches
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